The meaning of the Acronym OW is...

OW is

• Optical Window

More Meanings For OW:

• Outer Wall
• Open Water
• One Wave
• Oak Wood
• One Wish
• The Oddzial Wydzielony
• Oxford Weave
• Other Woman
• Oh Well
• Ordered Whole
• Obedience Warrant
• Off The Wall
• Offer Wanted
• Old Wench
• Order Wire

OW is also in:

• Astronomy
• General
• Military
• Ocean Science
• Physics
• Positions
• Unfiled